Nilfisk-Advance SC351 Service Manual

Control System 16Service Manual – SC351
Control System
Functional Description
The function control is performed with the program
selection knob/rotary switch (SW1), the machine
start-up enabling push-button (SW2) (which must be
used simultaneously with the brush levers) and the
solution ow switch (SW3).
The switch outputs controls the relevant outputs: re-
lay (K1) for brush motor, relay (K2) for vacuum sys-
tem motor, solenoid valve (EV).
The control circuit are protected by the fuse (F3).
The negative output of the battery charger (B2) al-
lows function activation when battery level is suf-
cient and the battery charger is not connected to the
electrical mains.
The LED electronic board (EB1) is equipped with 3
LEDs which indicate the battery charge level, both
during operation and while recharging:
Battery charge level
LED display
Diagram of Output Activation according to the Position of the Switches (SW1), (SW2)
and (SW3)
Program selection knob/
rotary switch (SW1)
settings
Machine start-up
enabling push-button
(SW2) settings (with
brush activation levers)
Brush motor (M1) Solenoid valve (EV) Vacuum system motor
(M2)
O
Pressed/released Off Off Off
Released Off Off On
Pressed On On On
Released Off Off Off
Pressed On On Off
Released/ Off Off On
Pressed On Off On
Solution ow push-button setting (SW3) Symbols Solenoid valve ON time
(EV)
Solenoid valve OFF time
(EV)
0
2 sec 2 sec
1
Always ON -

Nilfisk-Advance SC351 Specifications

General

Brand	Nilfisk-Advance
Model	SC351
Category	Floor Machine
Language	English